Compatible with phone clamps, microhones, fill lights, field monitors etc. The screw is not fixed and it features in driving by thumb, which is more convenient, and it not sratch your setups' skin [180-degree Tilt Head]This 3-head can be tilted up and down for 180 degree [Triple Mount]3 mounting head is great for multi tools when doing a live steam. You often need 3 phones at the same time or you can DIY your camera mount with this triple mount [Heavy Duty]Made of aluminum alloy, solid and sturdy. It is steady and 't shake compare with the plastic holders Color: Black Material: Aluminum Alloy Package Contents: 1 * Triple Phone Holder Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.